A disposable email (also called temporary, throwaway, or burner email) is an inbox that works like a normal email address for a short time and then disappears. You can receive messages and verification codes at it, but you never reveal your real address — and when the inbox expires, everything in it is permanently deleted.
How does a disposable email work?
When you open a service like MailboxTemp, it instantly generates a random address such as a8f2x@mailboxtemp.com. Any mail sent to that address is delivered to a temporary inbox you can read in your browser. There is no signup, no password, and no link to your identity. After a set lifetime — typically an hour — the address stops accepting mail and the contents are purged.
When should you use one?
- One-off signups: trying a tool, downloading a resource, or claiming a discount that requires an email.
- Avoiding spam: keeping your primary inbox clean from marketing lists you never asked to join.
- Receiving verification codes: confirming an account without exposing your real address.
- Testing: developers checking that their own signup or password-reset emails actually send.
When NOT to use one
Because the inbox expires and is deleted, a disposable address is the wrong choice for anything you need long-term access to: banking, work accounts, government services, or any login where you'll later need a password reset. For those, always use a permanent address you control.
Are disposable emails safe and legal?
Using a disposable address to protect your privacy is completely legitimate and widely used. What matters is how you use the accounts you create — always follow the terms of service of the sites you sign up for. A disposable inbox is just a privacy tool, like a PO box for postal mail.
Try it yourself
The fastest way to understand disposable email is to use one. Open the MailboxTemp homepage and you'll have a working inbox before you finish reading this sentence.